Zobrazeno 1 - 10
of 113
pro vyhledávání: '"John A. Hackwell"'
Autor:
Frank Pan, Sean C. Stuart, Adam G. Vore, Sara Lampen, John A. Hackwell, Peter D. Fuqua, James D. Barrie
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
A novel hyperspectral imager design required a slit mask with bi-directional reflectance suppression between 600nm to 1650nm. A dark mirror coating was fabricated and patterned on a commercial off the shelf (COTS) edge filter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::017071512ad70c0a1a8ab09d8afb987a
https://doi.org/10.1364/oic.2022.tea.7
https://doi.org/10.1364/oic.2022.tea.7
Autor:
John A. Hackwell, Patrick D. Johnson, David W. Warren, Stephen J. Young, Donald J. Rudy, Adam G. Vore, David M. Tratt
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 55:4558-4566
An airborne hyperspectral imager operating in the midwave-infrared spectral range is described. The Mid-infrared Airborne Hyperspectral Imager (MAHI) features 3.3-nm spectral sampling over its 3.3– $5.4~\mu \text{m}$ wavelength range. MAHI operates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::904ac135c74c3c75b19f6c69e5c5d315
https://doi.org/10.1109/tgrs.2017.2693979
https://doi.org/10.1109/tgrs.2017.2693979
Autor:
David M. Tratt, Robert Atlas, M. Joan Alexander, Jeffrey L. Hall, John A. Hackwell, Caleb P. Lampen, Philip T. Partain, Frank D. Marks, Lars Hoffmann, David S. Nolan, Bonnie L. Valant-Spaight, James H. Hecht, Steven D. Miller, Richard L. Walterscheid, Charles Swenson, L. J. Gelinas
Publikováno v:
Bulletin of the American Meteorological Society 99, 1813–1828 (2018). doi:10.1175/BAMS-D-17-0064.1
The prediction of tropical cyclone rapid intensification is one of the most pressing unsolved problems in hurricane forecasting. The signatures of gravity waves launched by strong convective updrafts are often clearly seen in airglow and carbon dioxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::604fc86ecb34a37bb02b883d2161e221
https://hdl.handle.net/2128/19819
https://hdl.handle.net/2128/19819
Autor:
David M. Tratt, Richard H. Boucher, David W. Warren, Eric R. Keim, John A. Hackwell, Michael S. Ramsey, Mazaher G. Sivjee, Jeffrey L. Hall, Kerry N. Buckland, Stephen J. Young, David J. Gutierrez, Nery M. Moreno, B. Robert Johnson
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 53:5447-5457
A new airborne facility instrument for Earth science applications is introduced. The Mineral and Gas Identifier (MAGI) is a wide-swath (programmable up to ±42° off nadir) moderate spectral resolution thermal-infrared (TIR) imaging spectrometer that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ebd78cfc1af27b988b69a1d4da1e6a
https://doi.org/10.1109/tgrs.2015.2422817
https://doi.org/10.1109/tgrs.2015.2422817
Autor:
L. E. Kirkland, John W. Salisbury, Eric R. Keim, Paul M. Adams, K. C. Herr, Allan H. Treiman, John A. Hackwell
Publikováno v:
Remote Sensing of Environment. 80:447-459
In May 1999, the airborne thermal infrared hyperspectral imaging system, Spatially Enhanced Broadband Array Spectrograph System (SEBASS), was flown over Mon-non Mesa, NV, to provide the first test of such a system for geological mapping. Several type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a44aaed84e123c09bf995d8cacbba7c2
https://doi.org/10.1016/s0034-4257(01)00323-6
https://doi.org/10.1016/s0034-4257(01)00323-6
Publikováno v:
Icarus. 146:43-47
Thermal IR spectroscopy of Saturn's A and B rings in the 8- to 13-μm range reveals a smooth, Planck-like continuum with no spectral structure that could be attributed to optically thin water ice or silicate dust. The brightness temperatures of the A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cb6910fc39cfc9cf5956892cd5879a6
https://doi.org/10.1006/icar.2000.6372
https://doi.org/10.1006/icar.2000.6372
Publikováno v:
The Astrophysical Journal. 500:280-290
We present intermediate-resolution (λ/Δλ ≈ 60) spectra of 21 ultracompact H II regions in the spectral range from 3 to 13 μm. The 9.7 μm silicate feature is seen in absorption, and the 12.8 μm [Ne II] fine structure line is seen in emission t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f03feabee4e705e9c2ff3006c1b50df
https://doi.org/10.1086/305727
https://doi.org/10.1086/305727
Autor:
Ray W. Russell, David K. Lynch, John A. Hackwell, Diana L. Blaney, Robert Kellogg, Martha S. Hanner
Publikováno v:
Icarus. 124:344-351
A 10 micron silicate emission feature has been discovered in the spectra of comets P/BorrelIy and P/Faye at R approximately 1.5 AU. These are the first short period comets in which silicate emission has definitely been detected. The broad emission fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d35a0f6cd1ba7cc0276b3d1246f2caab
https://doi.org/10.1006/icar.1996.0209
https://doi.org/10.1006/icar.1996.0209
Publikováno v:
Icarus. 112:490-495
An 8- to 13-micron spectrum of comet Mueller 1993a, a dynamically new comet, was acquired when the comet was at R = 2 AU. Strong, structured silicate emission is present, closely resembling that seen in Comet P/Halley at smaller R. For the first time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a295c61ae5b464f391ee528ae7362f19
https://doi.org/10.1006/icar.1994.1200
https://doi.org/10.1006/icar.1994.1200
Autor:
Leslie A. Young, John A. Hackwell, H. B. Hammel, David K. Lynch, Keith S. Noll, Ray W. Russell, Joanna Joiner
Publikováno v:
Icarus. 104:337-340
We obtained 3- to 13-μm spectra of Io on three nights in June 1991, observing both leading and trailing hemispheres. The spectrum from the hemisphere centered at 287° containing the volcanoes Loki and Pele had higher flux than the opposite hemisphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::619906fb5cf9db725adf11865d87569f
https://doi.org/10.1006/icar.1993.1105
https://doi.org/10.1006/icar.1993.1105